Levinton et al. (1995)

Levinton, J.S., M.L. Judge, and J.P. Kurdziel (1995) Functional differences between the major and minor claws of fiddler crabs (Uca, family Ocypodidae, order Decapoda, subphylum Crustacea): A result of selection or developmental constraint? Journal of Experimental Marine Biology and Ecology 193(1–2):147–160.